Amazon.com: CUIFATI M.2 NVME to PCIe X8 Expansion Card, NVME PCIe SSD to PCIe X8 Adapter Card, Support M Key, for M2 NGFF NVME Hard Drive,PCI E Card Converter Adapter Card (ph45) :
NVMe M.2 SSD to PCIe X16/X8/X4 Card - Sabrent
Western Digital WD BLACK AN1500 NVMe AIC 1TB PCI-Express 3.0 x8 Internal Solid State Drive (SSD) WDS100T1X0L - Newegg.com
NVMe M.2 SSD to PCIe X16/X8/X4 Card - Sabrent
10 Port Dual M.2 NVME SSD to PCIe 3.0 X8 Adapter Disk Expansion Card 2 x 32Gbps | eBay
Dual M.2 NVMe PCIe x8 Split Card with PCIe 4.0 Support for SSD RAID Expansion Adapter on Motherboard - AliExpress
Dual NVMe PCIe Adapter Card M.2 NVMe SSD to PCI-e 4.0 x8/x16 Card Support M.2 | eBay
2 Ports M.2 NVME SSD to PCIe 4.0 X8 Adapter 2 Disk Expansion Card 2 x 32Gbps | eBay
M.2 NGFF NVMe SSD to PCIE 3.0 X16/X8/X4 Adapter For 1U/2U Server Low Profile PC | eBay
PCIe x8 Gen4 for Bifurcated M.2 NVMe Dual Port AIC